Utilities are required to measure TOC concentrations in treatment plant influents and waters that contain a variety of dissolved molecules and organic particles. Uncertainties about the analytical accuracy of TOC measurements are the result of inadequate proficiency evaluation standards. The three primary research goals of the project were to: (1) develop total organic carbon (TOC) standards that can be used with all TOC methodologies to evaluate performance; (2) determine the ability of different TOC methodologies to ...
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Utilities are required to measure TOC concentrations in treatment plant influents and waters that contain a variety of dissolved molecules and organic particles. Uncertainties about the analytical accuracy of TOC measurements are the result of inadequate proficiency evaluation standards. The three primary research goals of the project were to: (1) develop total organic carbon (TOC) standards that can be used with all TOC methodologies to evaluate performance; (2) determine the ability of different TOC methodologies to accurately measure TOC; (3) test the ruggedness of the proficiency standards in a round-robin survey involving a large number of laboratories. A fourth goal was to determine the contribution of natural organic particles and suspended organic carbon (SOC) in the formation of DBPs. In general, all laboratories performed well in the analysis of an easily oxidized standard, potassium hydrogen phthalate (KHP). In contrast, several analysts had difficulty in efficiently separating an inorganic C (IC) amendment from the KHP standard when a 30 mg IC/L spike was added to the standard. Averaged over all instruments and analysts, standards that were solutions were analyzed with 92 ? 9% recovery, while standards that were particles were analyzed with 55 ? 21% recovery. The project data suggest that particles can compete with dissolved precursor material in reactions with applied disinfectants and contribute DBP precursors Originally published by AwwaRF for its subscribers in 2003
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Add this copy of The International Story: an Anthology With Guidelines to cart. $1.19, good condition, Sold by Zoom Books Company rated 5.0 out of 5 stars, ships from Lynden, WA, UNITED STATES, published 1998 by St Martins Press.
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Book is in good condition and may include underlining highlighting and minimal wear. The book can also include From the library of labels. May not contain miscellaneous items toys dvds etc. We offer 100% money back guarantee and 24 7 customer service.
Add this copy of The International Story: an Anthology With Guidelines to cart. $1.88, good condition, Sold by Aspen Book Company rated 5.0 out of 5 stars, ships from Denver, CO, UNITED STATES, published 1998 by St Martins Press.
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Good. A well-loved companion. Corners and cover might show a little wear and you could find some notes or highlights. The dust jacket might be MIA it might have been a library book and extras aren't guaranteed-but the story's all there!
Add this copy of The International Story: an Anthology With Guidelines to cart. $2.19, good condition, Sold by ThriftBooks-Atlanta rated 5.0 out of 5 stars, ships from Austell, GA, UNITED STATES, published by Cambridge University Press.
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Add this copy of The International Story: an Anthology With Guidelines to cart. $5.00, good condition, Sold by Books From California rated 4.0 out of 5 stars, ships from Simi Valley, CA, UNITED STATES, published 1998 by Cambridge University Press.
Add this copy of The International Story: an Anthology With Guidelines to cart. $7.40, good condition, Sold by ZBK Books rated 4.0 out of 5 stars, ships from Woodland Park, NJ, UNITED STATES, published 1998 by St Martins Press.
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